Cold roll
Steel wire coils

Machines and wire equipments

General description

Cold roll steel wire coil is a product obtained starting from the wire rod that is transformed with the process of rolling (through rolling cassettes equipped with forming/profiling rolls) made without heat supply and winded and packaged on fixed or collapsible spools.

Cold roll steel wire coil, thanks to the cold rolling process that reduces the diameter of the plain wire to the desired size is a product that increases the mechanical properties of the wire rods according to the market requirements in terms of tensile strength, yield strength and final elongation, normally called Agt. In the final step of the process of rolling, if requested, is it possible to add the positive ribbing or negative indentation to the wire, for concrete reinforcing purposes.

The final product applications are normally reinforcing mesh, stirrups, cages and lattice girders for the civil and industrial construction, foundations and precast industry.

Compared to a hot rolling plant, the advantages of a cold rolling plant are the much lower investment costs, the space required for the installation, greater flexibility and rapidity production changes of the diameter sizes, the quality of packaging of the final product, the limited number of operators (usually only one operator controls the whole plant) and the production and maintenance costs.

Cold roll steel wire coil is a product obtained starting from the wire rod that is transformed with the process of rolling (through rolling cassettes equipped with forming/profiling rolls) made without heat supply and winded and packaged on fixed or collapsible spools.

Cold roll steel wire coil, thanks to the cold rolling process that reduces the diameter of the plain wire to the desired size is a product that increases the mechanical properties of the wire rods according to the market requirements in terms of tensile strength, yield strength and final elongation, normally called Agt. In the final step of the process of rolling, if requested, is it possible to add the positive ribbing or negative indentation to the wire, for concrete reinforcing purposes.

The final product applications are normally reinforcing mesh, stirrups, cages and lattice girders for the civil and industrial construction, foundations and precast industry.

Compared to a hot rolling plant, the advantages of a cold rolling plant are the much lower investment costs, the space required for the installation, greater flexibility and rapidity production changes of the diameter sizes, the quality of packaging of the final product, the limited number of operators (usually only one operator controls the whole plant) and the production and maintenance costs.

Due to the continuous improvement made by our internal research and development department, we are able to supply complete machines or just single unit that, depending on the quality of the entry wire rod material, can produce exit wire material compliant to the local countries norms for the concrete applications like for example (but not only): ASTM A82, ASTM A706, ASTM A1064, DIN 488, SFS1300, IRAM/IAS U500, NCH1173, NBR7480, NCT2289, AS/NZS4671, NTP339 for the production of material according to the grade B500A, B500B, grade 60, grade 80, CA-50 and CA-60.

Thanks to more than 40 years of experience in the field of process of rolling, we manufacture high performances automatic turn key plants, that are tailor made on the needs of our customers in terms of layout, products sizes, mechanical properties, level of automation and which allow to finally reduce the transformation costs for each tons of steel wire produced.

Our offer is not limited to the construction of machines and equipment. If required, we are also able to supply valid training, technical assistance and consulting to improve the production of the cold roll process; These services are the keys to reach the target and maintain it over time in terms of efficiency and performance of the plant as well as in terms of correct mechanical properties of the wire produced.

Technical specifications

Working Speed (max) Up to 14 m/s for coils/spools
Inlet Wire Diameter 5,5 ÷ 20 mm
Wire quality at entrance low carbon wire rod
Outlet wire diameter 4 ÷ 18 mm
Type of wire at exit Smooth, ribbed or indented wire coils
Coil weight (max) Up to 8 tons
*above technical data are indicative and subjected to change, based on customer requirements.

Final products

Our cold roll machines for coils are the followings

COLD ROLL MACHINE TYPE LIBRASTAR

COLD ROLL MACHINE TYPE VEGASTAR

The Librastar model is our basic solution while the Vegastar offers more advantages at the level of flexibility: The main difference is that in the Vegastar line all the devices like mechanical descaler, wire drawing lubricant unit machine, bullblock, rolling cassettes and stress relieving device are installed in a single machine body making the machine more practical and ergonomic for the operator and reducing in this way the level of noise and dispersion of powders in the ambient. Other advantages are the high customization and the number and type of devices that can be installed inside the Vegastar body.

In the highest level of automation of our plants, the above mentioned lines can be equipped with automatic vertical wire spoolers that make all the operations like insertion of the wire, cutting, change of the spools, samples taking, strapping, labeling and weighing of the coils without any intervention of the operator.

The shape and engineering details of our lines allow to produce high-quality cold roll coils packaged in fixed or take a part spools. Normally, the coils produced are used for reinforcing mesh, stirrups, cages and lattice girders for the civil and industrial construction, foundations and precast industry.

For further information on these machines please click on the link above.